Condensing steam locomotive



Oct. 5 1926.

R. KLINGELHOFFER CONDENS ING STEAM LOCOMOTIVE Filed April 2, 1923 Patented Oct. 5, 1926.

UNITED STATES PATENT OFFICE.

REINHARD KLINGELHDFFER, 0F ,WERDEN-RUHR, GERMANY, ASSIGN'OB TO FRIED. KRUPP AKTIENGESELLSCHAFT, 0F ESSEN-ON-THE-RUHR, GERMANY.

CONDENSING STEAM LOCOMOTIVE.

Application filed April 2, 1923, Serial No. 629,410, and in Germany April 1, 1922.

The invention relates to condensing steam locomotives of the type in which, in addition to the locomotive boiler, a supplemental boiler is provided which is fed by fresh water and produces the steam for auxiliary engines of the locomotive. The invention has for its object to provide an arrangement as above stated which makes it possible to keep a low steam pressure in the supple mental boiler.

In the drawing Fig. 1 shows an embodiment of the subject matter of the inventionin elevation,

Fig. 2 shows a second embodiment, likewise in elevation.

Referring first to Fig. 1, A denotes the locomotive boiler from the dome a of which a live steam pipe a leads to a back-pressure auxiliary turbine B which is mounted on the tender C of the locomotive and is designed for driving the blower of there-cooling plant. The exhaust steam is led from the auxiliary turbine B partly into a pipe D destined for heating the train and partly into an exhaust pipe E. The steam led through the heating pipe D is lost for feeding the main boiler and must be recovered elsewhere, while the steam entering an exhaust steam turbine F through the pipe E, will be condensed in the condenser G and led again to the main boiler A, after having worked in the said turbine F.

Now, the 'quantity of steam lost by the heating pipe I is replaced by the supplemental boiler H having a feed water pipe h To this end, the pipe E is connected to the supplemental boiler by means of a ipe h a regulating valve if being inserted in the latter. The boiler H may be mounted on the locomotive boiler so as to derive its necessary heat from the latter, as shown in the drawings. The steam delivered by the supplemental boiler will, thus likewise work in the exhaust steam turbine F and is led back to the main boiler in condensed state. The valve 71 is so adjust-ed that the steam delivered the described way by the supplemental boiler and subsequently condensed will suflice for covering not only the lossesin feed water caused by the train heatlng plant but the whole losses in feed water of the main locomotive boiler, In case the train heating pipe D is completely shut off, all of the steam led from the dome a to the backpressure auxiliary turbine B will enter the condenser G. In this case the supplemental boiler has to cover merely the losses in feed water caused byleakage, by the safety valve, the whistle, etc.

In the second embodiment shown in Fig. 2 the steam delivered by the dome a is directly led into a. heating pipe at and the steam delivered by the supplemental boiler H to the back-pressure auxiliary turbine B and enters the condenser G after having worked in the exhaust steam turbine F. In order to maintain the water in the main boiler at a uniform level with this second arrangement, a quantity of steam must be supplied to the back-pressure auxiliary turbine B from the supplemental boiler H equal to that which-will become lost by the train heating, by leakage, etc.

Claims.

1. In a condensing steam locomotive, a supplemental boiler, a feed water pipe for fresh water and a steam outlet pipe in connection therewith, an exhaust steam turbine, said outlet pipe communicating with said turbine for driving the latter, the steam outlet of said turbine being connected to the condenser, a counter-pressure auxiliary turbine driven by steam from the locomotive boiler and having its steam outlet pipe in connection with said supplemental boiler outlet pipe, and means for heating said supplemental boiler, the water of condensation produced by said condenser from steam derived from said supplemental boiler being sufficient to compensate for the losses of water in the locomotive boiler.

2. In a'condensing steam locomotive, a supplemental boiler, a feed water pipe for fresh water and a steam outlet pipe connected therewith, an exhaust steam turbine, 5

said outlet pipe communicating with said turbine for driving the latter, the steam outlet of said turbine being connected to the condenser, a counterpressure auxiliary turbine supplied with steam from the main boiler, attain heating pipe, means c0nnectplemental boiler being sutficient to compening the outlet of said counter-pressure tursate the losses of Water in the main boiler. bine with the inlet of said exhaust steam tur- The foregoing specification signed at C0- 10 bine, andwith said train heating pipe, and logne, Germany, this 12th day of March,

5 means for heating said'supplemental boiler, 1923. i

the Water of condensation produced by said condenser from steam derived from said sup- REINHARD KLINGELHOFFER. 

